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Image compression method and electronic device

An image compression and grid technology, applied in image communication, image coding, image data processing, etc., to achieve the effect of saving storage space

Active Publication Date: 2021-11-30
INST OF IND TECH GUANGZHOU & CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Image compression method and electronic device

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Embodiment Construction

[0064] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0065] Such as Figure 4 Shown is the work flowchart of a kind of image compression method of the present invention, comprises:

[0066] Step S401, prepare an initial grid whose size is [0, X]×[0, Y] and contains N grid nodes, and set the color value of the pixel whose coordinates are (l, h) in the image whose size is L×H Stored in the grid at coordinates (x i the y i ) of the nth i grid nodes, where:

[0067] is the rounding symbol;

[0068] Step S402, generating an optimized adaptive anisotropic grid through adaptive anisotropic grid technology;

[0069] Step S403, restore the original image by spline linear interpolation, check whether the image pixel information stored in the optimized adaptive anisotropic grid meets the requirements, if not, use the optimized adaptive anisotropic grid grid as the new initial grid, and...

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Abstract

The invention discloses an image compression method and electronic equipment. The method includes: step A, for the initial grid, storing the color value of the pixel whose coordinates are (l, h) in the image into the grid whose coordinates are (x i ,y i ) of the nth i grid nodes; step B, generate an optimized adaptive anisotropic grid through adaptive anisotropic grid technology; step C, restore the original image by spline linear interpolation, and check the optimized adaptive anisotropic grid Whether the image pixel information stored in the anisotropic grid meets the requirements, if not, use the optimized adaptive anisotropic grid as the new initial grid, and return to step A for the next iteration. The invention utilizes the characteristics of the finite element grid in computational mechanics, based on the self-adaptive anisotropic grid optimization technology, and is applied in the image compression technology, which greatly saves the storage space of the image. This technology is not limited to the compression of two-dimensional images, but also can be extended to the application of compression of three-dimensional images.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to an image compression method and electronic equipment. Background technique [0002] With the continuous development of photography technology, images can capture very subtle details, especially in the medical field has made great contributions. However, the image size becomes larger and larger, contains a lot of pixels, consumes a large amount of image storage space, and is not easy for image transmission. Traditional image compression techniques include lossy compression and lossless compression, and these compression techniques are all implemented through data processing. [0003] Image information is composed of pixels, each pixel is in the shape of a small square and has a color value, and the pixels are arranged horizontally and vertically according to certain rules. The finite element grid is mainly used in computational mechanics, which provides a discrete conti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/182H04N19/186G06T9/00
CPCG06T9/00H04N19/182H04N19/186
Inventor 赵佳欣尚菲菲丁桦
Owner INST OF IND TECH GUANGZHOU & CHINESE ACADEMY OF SCI